Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gerald Robert Deyoung

Pharmacotherapy Pharmacist in Grand Rapids, MI · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1902806755

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Registry record

Entity type Individual (Type 1)

Name Dr. Gerald Robert Deyoung

Sex Male

Practice address 200 Jefferson Ave Se, Advantage Health Physicians and St. Mary'S Health Care, Grand Rapids, MI, 49503

Phone (616) 752-6410

Enumeration date Jul 22, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1835P1200X Pharmacotherapy Pharmacist Pharmacy Service Providers · License 5302027249 (MI) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Gerald Deyoung?

Gerald Deyoung is registered in NPPES with the primary taxonomy of Pharmacotherapy Pharmacist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.